Currently in the fine chemical, nuclear power industry, toxic, harmful media and the use of a large number of nuclear power ball valve bellows globe valve and gate valve. Bellows valve stem in the packing will be at the seals into the valve cover at the static seal, the effective resolution of the valve media Du leakage.
The valve; its own opening and closing needed along the radial stem rotated 90 degrees. Bellows can only bear tension and compression and can not afford to reverse, so to resolve the direction of opening and closing the valve stem bellows valve has become a key design.

Valve many years of practical experience in the design and production, and the ball design, the stem of the ball down and struck 90 degrees combined organic solve this problem.
The valve structure is simple, open and close light, reliable sealing and long life. And bellows gate valve and bellows, like you can just gently turn the hand wheel, a bellows valve adds a new species.
Bellows globe valve and gate valve, due to structural reasons; valve flow coefficient is small, the energy losses. Bellows valve structure of a large, body diameter at least more than double the size, followed by the stem and a series of part size should increase, and the stability of the valve is not good, is the last resort.
Bellows lift rod ball can be seen as part of the tube, the valve flow coefficient, energy loss slightly, is the ideal valve components. And the same diameter as compared bellows globe valve (diameter, for example 50) valve flow coefficient ~ Cv is 40 to 60, and valve flow coefficient ~ Cv is 440, 7 to 10 times the energy conservation is energy efficient green products, to replace the bellows globe valve. Plus, bellows ball valve can also be used.
Our group can provide GB, ANSI, DIN, JNS, etc., 1.6Mpa ~ 6.4Mpa of various calibers